Compact & small marine diesels
Beta Marine
UK builder of Kubota-based marine diesel engines (10-150 bhp), saildrives and generating sets for sailboats, narrowboats and small workboats.
High-speed diesel & gas engines
19 companies
High-speed diesel and gas engines (typically 1,000–2,300 rpm, up to about 10 MW) for workboats, yachts, fast ferries, patrol and naval craft.
Filter companies: High-speed diesel & gas engines
Engine designers & manufacturers
Caterpillar Marine
Caterpillar's marine business: Cat high-speed diesels, MaK medium-speed engines, gensets, controls and monitoring for commercial and yacht use.
Commercial & workboat engines
Cummins
US engine maker offering high-speed marine diesels from the QSL9 to the 4,200 hp QSK95 for workboats, tugs, ferries and yachts.
Commercial & workboat engines
Deutz
German engine maker offering 30–500 kW air- and liquid-cooled marine diesels for propulsion, gensets and emergency sets.
Commercial & workboat engines
FPT Industrial
Iveco Group powertrain brand building F1, NEF and Cursor marine diesel engines (about 63-735 kW) for leisure and commercial craft.
Commercial & workboat engines
HD Construction Equipment
HD Hyundai company whose engine division (ex-HD Hyundai Infracore/Doosan) builds 118–736 kW marine propulsion and generator diesels.
Naval & fast-craft engines
Isotta Fraschini Motori
Bari-based Fincantieri subsidiary building high-speed diesel engines for naval, fast craft and onboard power generation.
Commercial & workboat engines
John Deere Power Systems
Deere & Company engine division offering PowerTech 4.5L-13.5L marine diesels (60-559 kW) for propulsion, auxiliary and generator duty.
Commercial & workboat engines
MAN Engines
MAN Truck & Bus engine unit in Nuremberg supplying high-speed marine diesels for yachts, workboats and tugs, from 221 to 1,618 kW.
Commercial & workboat engines
Mitsubishi Heavy Industries
Japanese industrial group supplying S6R/S12R/S16R high-speed marine diesels and gensets, and the MALS air lubrication system.
Commercial & workboat engines
Moteurs Baudouin
French marine diesel engine maker owned by Weichai Power, supplying propulsion engines and gensets for workboats, fishing and yachts.
Compact & small marine diesels
Nanni Industries
French marinizer of Kubota, Toyota, John Deere, MAN and Scania base engines into marine diesels and generators from 10 to 2,200 hp.
Yacht & leisure engines
Rolls-Royce Power Systems (mtu)
Rolls-Royce business behind mtu high-speed marine diesels (Series 2000–8000), hybrid PropulsionPacks and NautIQ ship automation.
Commercial & workboat engines
Scania
Swedish truck and engine maker offering 9, 13 and 16-litre marine diesels (162-882 kW) for workboats, fishing, patrol and leisure craft.
Compact & small marine diesels
Steyr Motors
Austrian maker of compact high-power-density marine diesels (88-215 kW) for military boats, rescue craft, RIBs and workboats.
Compact & small marine diesels
Vetus
Dutch Yanmar-group supplier of small marine diesels, electric propulsion (E-LINE, E-POD) and bow/stern thrusters for leisure and small commercial boats.
Yacht & leisure engines
Volvo Penta
Volvo Group's marine and industrial power brand: inboard diesels, IPS pod drives, Aquamatic sterndrives and electric/hybrid IPS.
Engine designers & manufacturers
Weichai
Chinese engine group building high-speed WP/WD and medium-speed WH marine engines, including LNG and methanol versions; owns Moteurs Baudouin.
Engine designers & manufacturers
Yanmar
Japanese maker of medium-speed EY diesel and dual-fuel engines and high-speed marine diesels from 10 mhp for leisure and commercial craft.